AWS Lambda Concurrency - Provisional & Reserved

[@regilearn2138]

I am new to AWS, Would appreciate from were i can start to AWS

[@lovetocode4486]

Best way to learn AWS is practice. Create a free tier AWS account and start playing

[@nipunhimash6500]

What will happen if we give a reserved concurrency as 1 for a lambda function. Will it only spin up one execution environment and queue the other subsequent requests?

[@lovetocode4486]

It will spin 1 env in advance. If multiple requests come in the same second, it will spin more on demand lambda instances to serve. It won’t queue but other request will have cold-starts.

[@nipunhimash6500]

What if my unreserved concurrency is 100? Will it spin up 200 lambda instances if needed?

[@regilearn2138]

I got a task to react upload file/image to AWS s3 bucket to using lambda function and do CRUD using Dynmodb. Please do a tutorial on this. it would be very help full for us. Appreciate you support to your community.Please use react node and express for this.

[@lovetocode4486]

hi mate, thanks for the comment. There is a already video which use React and S3 bucket upload. Please check this: kzbin.info/www/bejne/e4vViXWkmMZngbs

[@maciekpaciarski9343]

is there information in the cloudwatch log about shutdown ?

[@lovetocode4486]

It doesnt show in cloudwatch. BTW "Lambda Insights enhanced monitoring" under "Monitoring and Operational Tool" gives more insights of the lambda execution

[@reeddiidator]

What do you think about Stacktape?

[@lovetocode4486]

Sorry mate, I dont have any hands-on experience with Stacktape. :(

[@maciekpaciarski9343]

and in what lambda memory the data from outside the handler is stored ?

[@lovetocode4486]

There is only one memory for lambda function which is "General configuration" => "Memory"